价值工程
價值工程
개치공정
VALUE ENGINEERING
2015年
24期
210-211
,共2页
银杉%一年生%生长节律
銀杉%一年生%生長節律
은삼%일년생%생장절률
cathaya argyrophylla%annual%the growth rhythm
对大沙河自然保护区银杉一年生野外直播苗苗期生长节律进行了研究，研究分析表明：苗高和地径生长呈平缓“S”型曲线生长；苗木生长节律分别经历了慢生期、速生期和渐进停滞期3个时期，苗高速生期从6月上旬至8月上旬止，地径速生期从6月上旬至9月上旬止；苗高、地径年生长量分别为4.6cm、0.7mm。开展银杉播种育苗研究，观测银杉从播种发芽至可炼苗出圃期间的生长节律，为在不同生长时期采用相应的管理措施提供了科学依据。
對大沙河自然保護區銀杉一年生野外直播苗苗期生長節律進行瞭研究，研究分析錶明：苗高和地徑生長呈平緩“S”型麯線生長；苗木生長節律分彆經歷瞭慢生期、速生期和漸進停滯期3箇時期，苗高速生期從6月上旬至8月上旬止，地徑速生期從6月上旬至9月上旬止；苗高、地徑年生長量分彆為4.6cm、0.7mm。開展銀杉播種育苗研究，觀測銀杉從播種髮芽至可煉苗齣圃期間的生長節律，為在不同生長時期採用相應的管理措施提供瞭科學依據。
대대사하자연보호구은삼일년생야외직파묘묘기생장절률진행료연구，연구분석표명：묘고화지경생장정평완“S”형곡선생장；묘목생장절률분별경력료만생기、속생기화점진정체기3개시기，묘고속생기종6월상순지8월상순지，지경속생기종6월상순지9월상순지；묘고、지경년생장량분별위4.6cm、0.7mm。개전은삼파충육묘연구，관측은삼종파충발아지가련묘출포기간적생장절률，위재불동생장시기채용상응적관리조시제공료과학의거。
The research of cathaya argyrophylla annual wild seeding period growth rhythm in Da-ShaHe nature reserve showed thatthe seedling height and ground diameter growth was gentle"S"type curve;Seedling growth rhythm, respectively, has experienced a slow life period, fast growth period and progressive plateau three times, seeding high-speed stage from early June to early August, diameter fast-growing period from early June to early September; Annual growth of seedling height, ground diameter of 4.6 cm and 0.7 mm respectively. The studying could provide scientific basis for the corresponding management measures for the different growth periods.
